The “Without You” hitmakers earned a reputation as rock wildmen with their drink-and-drug fuelled antics in the 1980s, and they have given the young “Baby” hitmaker some tips if he truly wants to shake off his child star past.

However, Sixx and Neil have advised Bieber to step up his hell-raising if he really wants a bad boy image.

Sixx tells Q magazine, “Let’s give him a little bit of credit. He started with the eggs, which was a little weak – a poor start. Then he got arrested in Miami for drag-racing and that was kinda cool – he was under the influence. Then he got arrested in Toronto and turned himself in. So he’s getting better, but he has work to do.”

Neil adds, “He has to beat someone with a chain, or something. Or get into a fight with a cop… The next thing he’ll get arrested for is toilet-papering a house.”